Chemistry Exam 3

A 10% starch solution is separated from a 2% starch solution by a semipermeable membrane. Starch is a colloid. Which of the following is correct?

How many grams of glucose are needed to prepare a 400 mL of a 2.0% (m/v) glucose solution?

A homogenous mixture that does not settle out upon standing is-

In a solution, the solvent-

According to Henry's Law, the solubility of a gas in a liquid-

The molarity (M) of a solution refers to-

The solubility of KI is 50 g in 100 g of H2O at 20 degrees Celsius. If 110 grams of KI are added to 200 grams of H2O-

What volume of 2.00 M KCl solution is required to prepare 500.0 mL of a 0.100 M KCl solution?

How many equivalents are in 0.40 mole of K+?

What is the molarity of a solution which contains 58.5 g of sodium chloride dissolved in .500 L of solution?

The mass percent concentration refers to-

A solution contains 43 mEq/L of Cl- and 11 mEq/L of HPO4. If the only cation in the solution is Na+, what is the Na+ concentration in mEq/L?

What is the concentration, in mass percent (m/m), of a solution prepared from 50.0 g of NaCl and 150.0 g of water?

Oil does not dissolve in water because-

Rubbing alcohol is 70% (m/v) isopropyl alcohol by volume. How many mL of isopropyl alcohol are in a 1 pint (473 mL) container?

Consider a 4% starch solution and a 10% starch solution separated by a semipermeable membrane. The process that occurs in this system is-

During the process of diluting a solution to a lower concentration-

Water is a polar solvent and hexane is a nonpolar solvent. Which of the following is true: Octane, soluble in water NaHCO3, soluble in water CCl4, soluble in water Mineral oil, soluble in water CaCl2, soluble in hexane

When KCl dissolves in water-

A solution that has an osmotic pressure less than that of red blood cells is called-

What is the pH of a solution with H3O=1 x 10^-9?

For Kw, the product of H3O and OH is-

The conjugate base of H2O is-

Ammonium hydroxide is a weak base because-

The conjugate acid of H2O is-

Normal blood pH is about-

When hyperventilation causes a patient to exhale large amounts of CO2, the blood pH rises in a condition-

When a lack of gas diffusion causes a patient to inhale a large amount of CO2, the blood pH lowers in a condition-

When renal disease causes a patient to inhale large amounts of hydrogen, the blood pH lowers in a condition called-

When vomiting causes a patient to exhale large amounts of hydrogen, the blood pH rises in a condition called-

Which one of the following is the characteristic of a base? is insoluble in water has a slippery, soapy feel turns blue litmus red produces H3O in water has a sour taste

In a neutralization reaction-

Correctly balance this equation for the complete neutralization of H3PO4 by Ca (OH)2.

When an acid reacts with a metal like Al, the products are-

The H3O of a solution with pH=8.7 is-

What is the H3O in a solution with OH = 2.5 x 10^-2 M?

Which of the following is a buffer system?

A 10.0 mL of 0.121 M H2SO4 is neutralized by 17.1 mL of KOH solution. The molarity of the KOH solution is-

What is the pH of a solution with OH = 1 x 10^-4?

Which of the following statements correctly describes the hydronium-hydroxide balance in the given solution? in neutral solutions, H3O = H2O in bases, OH is greater than H3O in acids, OH is greater than H3O in bases, OH is less than H3O in bases, OH = H3O

What is the OH in a solution that has a H3O = 1 x 10^-6?

Which of the following is the strongest acid? H2CO3 NaOH H3PO4 NH4 HCl

The name of Al(OH)3 is-

What is the name for a three-carbon saturated alkyl group?

Which of the following is true of nonane, C9H20, which has a density of .79 g/mL, melts at -51 degrees Celsius, and boils at 151 degrees Celsius? nonane does not undergo combustion nonane floats on the surface of water nonane is soluble in water nonane is a gas at room temperature nonane is a solid at room temperature

An alkene is an organic compound that contains a-

What is the IUPAC name of a compound with 5 carbons, and substituents on 2 and 4?

What is the condensed structural formula for the product of the hydrogenation of 2-butene using a platinum catalyst?

The structural formula of benzene is often represented as a-

Structural isomers are molecules that share the same formula and have-

Organic chemistry is the study of the chemistry of compounds of-

What is the condensed structural formula for the compound 3-hexene?

Hydrocarbons are the primary constituents of-

A cycloalkane-

Some alkenes have geometric (cis-trans) isomers because-

An unsaturated compound always-

Insects communicate with chemicals called-

Carbon atoms always have how many covalent bonds?

In the balanced equation for the complete combustion of heptane, the coefficient for carbon dioxide is:

Which one of the following compounds has the smallest number of hydrogen atoms? 2-methylpropane butyne butene 2-methylbutane butane

Which of the compounds is a cycloalkene? CH2=CH-CH=CH2 Square w/ a double bond CH3-CH=CH2 Pentagon Benzene Ring

What is the product of the hydration reaction shown below? CH3-CH2-CH=CH2 + HOH (H+)

The reaction of an alkene and water in the presence of an acid catalyst to product an alcohol is called-

The carbonyl group consists of-

What is the common name of this compound? Pentane attached to O-CH2-CH3

Does this compound contain a ketone functional group? CH3-CH2-C(double bond w/ O)-CH3

Thiols have structures similar to alcohols except that they contain-

Thiols are strong-smelling compounds responsible for-

Does this compound contain an alcohol? CH3-CH(bonded w/ OH)-CH3.

A phenol has an OH group bonded to a-

In the IUPAC naming system, an aldehyde is named by replacing the e of the name of the corresponding alkane with-

In all aldehydes except formaldehyde, the carbonyl group is bonded to how many hydrogen atoms?

The common name of CH3-CH2-O-CH2-CH2 is-

Tertiary alcohols cannot be oxidized because-

The dehydration product of CH3-CH2-CH2-O-H in the presence of acid is-

Formalin is-

A primary alcohol has a hydroxyl group bonded to a-

The common name for butanone, a readily available solvent, is-

What classification of alcohol undergoes oxidation to yield a ketone?

Formaldehyde is used industrially to make-

What kind of alcohol is a skeletal formula with three CH's?

When a primary alcohol is strongly oxidized, the product is-

Calculating Equivalents

Calculating Mass-Volume Percent

Calculating Mass-Mass Percent

Calculating Volume-Volume Percent

Why is the oxygen-hydrogen bond polar?

What happens when NaCl dissolves in water?

Calculating Mass from Molarity

Chemical Equilibrium

Naming Acids

Bronsted-Lowry Theory

Dialysis